Issued:

2009-07-16

Updated:

2009-07-16

RHSA-2009:1159 - Moderate: libtiff security update

Synopsis

Moderate: libtiff security update

Type/Severity

Security Advisory Moderate

Topic

Updated libtiff packages that fix several security issues are now available for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Description

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.

Several integer overflow flaws, leading to heap-based buffer overflows, were found in various libtiff color space conversion tools. An attacker could create a specially-crafted TIFF file, which once opened by an unsuspecting user, would cause the conversion tool to crash or, potentially, execute arbitrary code with the privileges of the user running the tool. (CVE-2009-2347)

A buffer underwrite flaw was found in libtiff's Lempel-Ziv-Welch (LZW) compression algorithm decoder. An attacker could create a specially-crafted LZW-encoded TIFF file, which once opened by an unsuspecting user, would cause an application linked with libtiff to access an out-of-bounds memory location, leading to a denial of service (application crash). (CVE-2009-2285)

The CVE-2009-2347 flaws were discovered by Tielei Wang from ICST-ERCIS, Peking University.

All libtiff users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, all applications linked with the libtiff library (such as Konqueror) must be restarted for the update to take effect.

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• libtiff-devel-3.6.1-12.el4_8.4.i386.rpm
• libtiff-devel-3.6.1-12.el4_8.4.ppc.rpm
• libtiff-3.6.1-12.el4_8.4.ppc.rpm
• libtiff-3.8.2-7.el5_3.4.s390x.rpm
• libtiff-3.6.1-12.el4_8.4.s390x.rpm
• libtiff-3.6.1-12.el4_8.4.s390.rpm
• libtiff-3.6.1-12.el4_8.4.ia64.rpm
• libtiff-3.8.2-7.el5_3.4.ppc.rpm
• libtiff-devel-3.8.2-7.el5_3.4.ia64.rpm
• libtiff-3.8.2-7.el5_3.4.ia64.rpm
• libtiff-3.6.1-12.el4_8.4.x86_64.rpm
• libtiff-devel-3.6.1-12.el4_8.4.s390.rpm
• libtiff-3.8.2-7.el5_3.4.x86_64.rpm
• libtiff-devel-3.8.2-7.el5_3.4.x86_64.rpm
• libtiff-3.6.1-12.el4_8.4.i386.rpm
• libtiff-devel-3.6.1-12.el4_8.4.x86_64.rpm
• libtiff-devel-3.8.2-7.el5_3.4.i386.rpm
• libtiff-3.8.2-7.el5_3.4.s390.rpm
• libtiff-devel-3.8.2-7.el5_3.4.ppc64.rpm
• libtiff-3.6.1-12.el4_8.4.src.rpm
• libtiff-3.6.1-12.el4_8.4.ppc64.rpm
• libtiff-devel-3.6.1-12.el4_8.4.s390x.rpm
• libtiff-3.8.2-7.el5_3.4.src.rpm
• libtiff-devel-3.8.2-7.el5_3.4.s390x.rpm
• libtiff-devel-3.8.2-7.el5_3.4.s390.rpm
• libtiff-3.8.2-7.el5_3.4.ppc64.rpm
• libtiff-3.8.2-7.el5_3.4.i386.rpm
• libtiff-devel-3.8.2-7.el5_3.4.ppc.rpm
• libtiff-devel-3.6.1-12.el4_8.4.ia64.rpm

Fixes

• This content is not included.BZ - 507465
• This content is not included.BZ - 510041

CVEs

• CVE-2009-2347
• CVE-2009-2285

References

• http://www.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.